to retake the largest city, aleppo, from government forces and today the fighting destroyed one of syria's historic treasures as aleppo's ancient market, or souk, went up in flames. the medieval marketplace a maze of passageways connecting shops once looked like this. the youngest prisoner and last westerner held at the u.s. military prison at dwaub was returned to his native canada today. omar khadr will sterve what is left of his sentence at a maximum security jail inon teario. the transfer deal was reached about a year ago, but canada's conservative government only acted today. in his decade behind bars at guatanamo, omar khadr was an unlikely poster boy for the war on terror. what has made his case so controversial is his age. he was only 15 years old when he was captured by u.s. forces in afghanistan. >> the time he was brought in, he was just a child. the u.s. did not treat him in the way that international law applies, and that's what really ising significant about this particular case. >> reid: under a plea deal before a military tribunal in 2010, he pleaded guilty to kill a u.s.